1. Spandex mechanically covered yarn: spandex/nylon (DTY, FDY), spandex/polyester, spandex/viscose filament, spandex/gold and silver, spandex/cotton, spandex/various yarns, spandex /Polyester/Thermal fuse.
2. Spandex air-covered yarn: spandex yarn/polyester (DTY, FDY), spandex yarn/nylon (DTY, FDY), nylon (polyester)/conductive yarn, viscose filament + nylon (polyester) DTY, spandex yarn + Glossy filament.
3. Elastic thread (elastic wrapped root): latex thread/nylon (DTY, FDY), latex thread/polyester (DTY, FDY), latex thread/filament, latex thread/two-color yarn, latex thread/various yarn.
4. Non-elastic covered yarn: yarn + polyester (nylon)/1F×2 (double wrap), linen + DTY, viscose yarn + filament, viscose filament/nylon elastic yarn, spandex covered yarn/ TR (cotton, TC, acrylic), combed cotton (viscose, bamboo fiber, various yarns) + polyester or nylon double wrap, polyester DTY (white, color) + spandex covered yarn + viscose cotton composite wrapped non-elastic Yarn, glass filament (bottle) + polyester filament, thermal fuse + polyester + ammonia
Characteristics of Spandex Covered Yarn
1. Air-covered yarn (commonly known as empty package, abbreviated as ACY in English) is the outsourcing fiber filament and spandex yarn that are drafted at the same time through a certain type of nozzle, and the high-compression air is periodically sprayed to form a regular network. points of yarn. The fabric feels soft and smooth; 2. Mechanically covered yarn (commonly known as machine bag, abbreviated as SCY in English) is the continuous rotation of outsourcing fiber filaments and coiled on the core silk spandex drawn at an even speed. With twist (abbreviated as TPM in English), the fabric style is flat and straight is its main feature.
Empty bales and machine-wrapped yarns are both good and bad in the weaving mills in the middle and lower reaches. The empty bale generally needs to be desized when warping on the air-jet loom, otherwise the fabric is prone to pilling and broken threads, etc., but it can be used immediately after beating up. Considering the cost alone, the production capacity of empty bales is much higher than that of machine bales, making the price lower than that of machine bales, which is conducive to reducing the cost of mid-stream and downstream weaving mills.
Although the machine bales do not expose the core yarn, except for the uneven twist, it is not easy to cause product quality problems during spinning and weaving, but the production volume is low, and the price is more than RMB5000/T compared to the empty bales of the same specification. The price of fine denier covered yarn is even higher than RMB10000/T of empty bales of the same specification, thus greatly increasing the cost of using machine bales.
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